Native 4K
Not an upscale — 4K is generated at the model level, so edges and text stay sharp.
4K
Kling 4.0
Native 4K·Lip sync·30-second clips
Kuaishou's flagship model. Native 4K output, accurate lip sync and the strongest motion realism in the mid-price tier — the default choice for ads and talking-head work.
No install. No account for the first clip. Watermark-free on paid plans.
Kling 4.0 · preview
What you get
Lip sync in 20+ languages
Feed a script and a reference face; the model matches mouth shapes to the words.
Motion that holds up
Longer shots keep limbs, hands and props stable compared with 3.x.
Built for what you ship
UGC-style ads
A creator-style clip with a spoken hook, ready for TikTok.
Talking heads
Presenter video from a photo, no camera.
Product detail
4K close-ups where texture and labels matter.
Kling 4.0 vs Kling 3.0
| Spec | Kling 4.0 | Kling 3.0 |
|---|---|---|
| Max resolution | Native 4K | 1080p |
| Lip sync | Yes, 20+ languages | English only |
| Max length | 30s | 10s |
| Price (1080p) | $0.112 / second | $0.09 / second |
| Price (4K) | $0.42 / second | — |
Sources: provider documentation, retrieved 2026-10-21. Prices are per second of generated video at the stated resolution.
Kling 4.0 FAQ
Is Kling 4.0 free?
The first clip is free without an account. Ongoing free use is limited to watermarked 720p; paid plans start at $12/month.
How much does a 4K clip cost?
4K generation costs $0.42 per second — a 5-second 4K clip is about $2.10. 1080p is $0.112 per second.
Does Kling 4.0 do lip sync?
Yes, in 20+ languages. Upload a face reference and a script, or let the studio dub an existing video.
Kling 4.0 vs Veo 3.1 — which is better?
Kling 4.0 wins on resolution and lip sync; Veo 3.1 wins on cinematic realism and camera control. Both are available here, so you can A/B the same prompt.
Can I use Kling 4.0 commercially?
Yes on any paid plan. Free-tier output is personal use only.
What is the best Kling 4.0 alternative?
Veo 3.1 for cinematic shots, Seedance 2.5 for longer clips with references, Hailuo H3 for the lowest cost.
Generate your first Kling 4.0 clip
$0.112 per second. 20 free credits on sign-up.
Start freeNo credit card for the first clip.